최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0988410 (2004-11-12) |
등록번호 | US-7535874 (2009-07-01) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 29 인용 특허 : 394 |
A code division multiple access subscriber unit comprises an antenna configured to output a radio frequency signal, the radio frequency signal having a quadrature (Q) channel and an in-phase (I) channel. A circuit coupled to the antenna, the circuit being configured to generate power control bits wh
A code division multiple access subscriber unit comprises an antenna configured to output a radio frequency signal, the radio frequency signal having a quadrature (Q) channel and an in-phase (I) channel. A circuit coupled to the antenna, the circuit being configured to generate power control bits which are carried by one of the I and Q channels and not the other one of the I and Q channels, the power control bits are spread coded and are adapted to control an output power of a base station. The radio frequency signal is a first radio frequency signal, the circuit is further configured to generate the power control bits based on a power level of a second radio frequency signal output by a base station and an interference level associated with the second radio frequency signal.
What is claimed is: 1. A code division multiple access subscriber unit comprising: an antenna configured to output a first radio frequency signal, the first radio frequency signal having a quadrature (Q) channel and an in-phase (I) channel; and a circuit coupled to the antenna, the circuit being co
What is claimed is: 1. A code division multiple access subscriber unit comprising: an antenna configured to output a first radio frequency signal, the first radio frequency signal having a quadrature (Q) channel and an in-phase (I) channel; and a circuit coupled to the antenna, the circuit being configured to generate power control bits based on a power level of a second radio frequency signal received from a base station and an interference level associated with the second radio frequency signal, wherein the power control bits are carried by one of the I and Q channels and not the other one of the I and Q channels, and the power control bits are spread coded and adapted to control an output power of the base station. 2. A code division multiple access subscriber unit in accordance with claim 1, wherein the first radio frequency signal is modulated in accordance with a quadrature phase shift keying (QPSK) format. 3. A code division multiple access subscriber unit in accordance with claim 1, wherein said one of the I and Q channels carrying the power control bits further carries signaling information. 4. A code division multiple access subscriber unit in accordance with claim 3, wherein the signaling information is adapted to facilitate processing of signals received by the base station. 5. A code division multiple access subscriber unit comprising: an antenna configured to output a first radio frequency signal, the first radio frequency signal having a quadrature (Q) channel and an in-phase (I) channel; and a circuit coupled to the antenna, the circuit being configured to generate power control bits which are carried by one of the I and Q channels and not the other one of the I and Q channels, wherein the power control bits are spread coded and are adapted to control an output power of a base station; and wherein the other one of the I and Q channels carries user data produced as a result of an input supplied to the code division multiple access subscriber unit. 6. A code division multiple access subscriber unit in accordance with claim 5, wherein the user data includes at least one of voice data and video data. 7. A code division multiple access subscriber unit in accordance with claim 1, wherein the power control bits are not error protected. 8. A code division multiple access subscriber unit in accordance with claim 1, wherein the power control bits are not forward error correction encoded. 9. A code division multiple access subscriber unit, comprising: an antenna configured to receive a first radio frequency signal; and a circuit coupled to the antenna, the circuit configured to generate power control bits in response to the first radio frequency signal, wherein the power control bits are based on a power level of the first radio frequency signal and an interference level associated with the first radio frequency signal, the power control bits being adapted to control a power of a base station, the circuit being configured to spread code the power control bits and to generate an in-phase (I) channel and a quadrature (Q) channel, such that the spread coded power control bits are carried by one of the I and Q channels and not the other one of the I and Q channels, wherein the I and Q channels are carried by a second radio frequency signal output by the code division multiple access subscriber unit. 10. A code division multiple access subscriber unit in accordance with claim 9, wherein the second radio frequency signal is modulated in accordance with a quadrature phase shift keying (QPSK) format. 11. A code division multiple access subscriber unit in accordance with claim 9, wherein said one of the I and Q channels carrying the power control bits further carries signaling information. 12. A code division multiple access subscriber unit in accordance with claim 11, wherein the signaling information is adapted to facilitate processing of signals by the base station. 13. A code division multiple access subscriber unit, comprising: an antenna configured to receive a first radio frequency signal; and a circuit coupled to the antenna, the circuit configured to generate power control bits in response to the first radio frequency signal, the power control bits being adapted to control a power of a base station, the circuit being configured to spread code the power control bits and to generate an in-phase (I) channel and a quadrature (Q) channel, such that the spread coded power control bits are carried by one of the I and Q channels and not the other one of the I and Q channels, wherein the I and Q channels are carried by a second radio frequency signal output by the code division multiple access subscriber unit, wherein the other one of the I and Q channels carries user data produced as a result of an input supplied to the code division multiple access subscriber unit. 14. A code division multiple access subscriber unit in accordance with claim 13, wherein the user data includes at least one of voice data and video data. 15. A code division multiple access subscriber unit in accordance with claim 9, wherein the power control bits are not error protected. 16. A code division multiple access subscriber unit in accordance with claim 9, wherein the power control bits are not forward error correction encoded. 17. A communication method, comprising: receiving a first radio frequency signal with a user antenna of a code division multiple access subscriber unit; generating power control bits in response to the first radio frequency signal, the power control bits being adapted to control a power of a base station; spread coding the power control bits; modulating a second radio frequency signal to carry an in-phase (I) channel and a quadrature (Q) channel, wherein one of the I and Q channels carries the spread coded power control bits and the other one of the I and Q channels does not carry the power control bits; and transmitting the second radio frequency signal, wherein the generating the power control bits is based on a power level of the first radio frequency signal and a noise level associated with the first radio frequency signal. 18. A communication method in accordance with claim 17, wherein the modulating the second radio frequency signal is in accordance with a quadrature phase shifted keying (QPSK) format. 19. A communication method in accordance with claim 17, further comprising supplying signaling information to said one of the I and Q channels carrying the spread coded power control bits. 20. A communication method in accordance with claim 19, wherein the signaling information is adapted to facilitate processing of signals by the base station. 21. A communication method, comprising: receiving a first radio frequency signal with a user antenna of a code division multiple access subscriber unit; generating power control bits in response to the first radio frequency signal, the power control bits being adapted to control a power of a base station; spread coding the power control bits; modulating a second radio frequency signal to carry an in-phase (I) channel and a quadrature (Q) channel, wherein one of the I and Q channels carries the spread coded power control bits and the other one of the I and Q channels does not carry the power control bits; transmitting the second radio frequency signal; supplying signaling information to said one of the I and Q channels carrying the spread coded power control bits, wherein the signaling information is adapted to facilitate processing of signals by the base station; receiving an input to the code division multiple access subscriber unit; and supplying data based on the input to the other one of the I and Q channels. 22. A communication method in accordance with claim 17, wherein the power control bits are not error protected. 23. A code division multiple access subscriber unit in accordance with claim 17, wherein the power control bits are not forward error correction encoded. 24. A method in accordance with claim 17, wherein the code division multiple access subscriber unit further comprises: a controller circuit; an encoder circuit; a decoder circuit; a modulator circuit; a demodulator circuit; and a memory circuit. 25. A code division multiple access subscriber unit in accordance with claim 1, further comprising: a controller circuit; an encoder circuit; a decoder circuit; a modulator circuit; a demodulator circuit; and a memory circuit. 26. A code division multiple access subscriber unit in accordance with claim 9, further comprising: a controller circuit; an encoder circuit; a decoder circuit; a modulator circuit; a demodulator circuit; and a memory circuit. 27. A method in accordance with claim 21, wherein the code division multiple access subscriber unit further comprises: a controller circuit; an encoder circuit; a decoder circuit; a modulator circuit; a demodulator circuit; and a memory circuit. 28. A code division multiple access subscriber unit in accordance with claim 5, further comprising: a controller circuit; an encoder circuit; a decoder circuit; a modulator circuit; a demodulator circuit; and a memory circuit. 29. A code division multiple access subscriber unit in accordance with claim 13, further comprising: a controller circuit; an encoder circuit; a decoder circuit; a modulator circuit; a demodulator circuit; and a memory circuit. 30. A code division multiple access subscriber unit in accordance with claim 5, wherein the first radio frequency signal is modulated in accordance with a quadrature phase shift keying (QPSK) format. 31. A code division multiple access subscriber unit in accordance with claim 5, wherein said one of the I and Q channels carrying the power control bits further carries signaling information. 32. A code division multiple access subscriber unit in accordance with claim 21, wherein the signaling information is adapted to facilitate processing of signals received by the base station. 33. A code division multiple access subscriber unit in accordance with claim 13, wherein the second radio frequency signal is modulated in accordance with a quadrature phase shift keying (QPSK) format. 34. A code division multiple access subscriber unit in accordance with claim 13, wherein said one of the I and Q channels carrying the power control bits further carries signaling information. 35. A code division multiple access subscriber unit in accordance with claim 34, wherein the signaling information is adapted to facilitate processing of signals received by the base station. 36. A communication method in accordance with claim 21, wherein the second radio frequency signal is modulated in accordance with a quadrature phase shift keying (QPSK) format. 37. A communication method in accordance with claim 21, wherein said one of the I and Q channels carrying the power control bits further carries signaling information. 38. A communication method in accordance with claim 37, wherein the signaling information is adapted to facilitate processing of signals received by the base station.
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